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Europa, Jupiter’s possible watery moon

2 Sep 2021, 21:02 UTC
Europa, Jupiter’s possible watery moon NASA/JPL-Caltech/SETI Institute.

Europa is the sixth-largest moon in the solar system and Jupiter’s fourth-largest satellite. Despite its cracked and discolored appearance, it is the smoothest solid object in the solar system; its highest peaks, of which there are few, only reach a few hundred meters tall, and large craters are rare. The streaks and splotches that run across the terrain are probably mostly due to relatively shallow fractures and different compositions of the ground, not the enormous canyons present on some other worlds.

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